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Ive downloaded Apple's PageControl Sample Code to try to learn how to create lazily loaded pages as the user scrolls as mentioned in Matt Neuburg's programming iOS 11. However right out of the box as I scroll the picutres disappear and I get a black screen. Is that supposed to happen is there an error in the code.
in Cocoa Touch
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I am attempting to create a UIScrollView with infinitely many horizontally scrolling pages. I plan to use instances of several reusable cached ViewControllers to fill the pages. To achieve this I am trying to create a similar effect to UIPageViewController by using a beforeViewController a currentViewController and an afterViewController to fill… (Show more)
in Developer Forums
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I'm creating a project which uses a UICollectionView. As the user selects a cell this slides them to another UICollectionView of similar nature. Ive been noticing that no matter how I go about this I wind up with mountains of memory usage. I've been experimenting with placing UICollectionView's in full page UICollectionViewCell's so as to take… (Show more)
in Cocoa Touch
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Ive created a navigation which pushes a view controller that contains an image view and a button which adds the same view controller each time the button is tapped. After each tap the memory grows and after each back tap the memory is not released despite deinit being called. There is nothing in the code that points to a memory leak is there… (Show more)
in Cocoa Touch
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Memory is not released during perform batch updates in CollectionView.   I've been working on a project of using two UICollectionView's I have on that is the MainViewController with full screen cells that scroll horizontally and one that sits on that full screen cell and scrolls vertically. I have a functionality that adds as well as deletes… (Show more)
in Cocoa Touch
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AVCam swift sample project is not working on iPhone 6s plus, it returns an error of AVCam swift sample project is not working on iPhone 6s plus, it shows a black screen on the device and returns an error of:   Capture session runtime error: related decl 'e' for AVError(_nsError: Error Domain=AVFoundationErrorDomain Code=-11819 "Cannot Complete… (Show more)
in Swift